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Methodology for the adjustment of the function of the unbalanced load loss protection-negative ansi 46 sequence of a siemens 7um62 relay synchronous generator
This paper presents the theory and methodology for the adjustment of the negative sequence current protection function (PDF) ANSI 46 of a synchronous generator with poles and poles, for a multifunctional relay SIEMENS 7UM62 that uses for its logic of decision the curve of time of heating allowed of the machine before the increase of the magnitude of negative sequence Also the consequences and the damages that can be caused by the excess of current of negative sequence circulating by the stator of the generator are